1
|
Pan HX, Luo GN, Qin CL. Laparoscopic uterovaginal anastomosis in patients with congenital cervicovaginal atresia: An institutional experience with 23 patients. Eur J Obstet Gynecol Reprod Biol 2021; 260:218-224. [PMID: 33848707 DOI: 10.1016/j.ejogrb.2021.03.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 01/25/2021] [Accepted: 03/24/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To introduce our experience of laparoscopic uterovaginal anastomosis and operative outcomes following this technique and update the clinical management of congenital cervicovaginal atresia. STUDY DESIGN Between March 2015 and January 2019, twenty-three patients with congenital cervicovaginal atresia underwent laparoscopic uterovaginal anastomosis and Luohu procedure. Their clinical characteristics, surgical outcomes and follow-up data were retrospectively reviewed. RESULTS The mean ± SD age of the cases was 16.4 ± 4.0 (11-26) years. All patients had a history of primary amenorrhea and cyclical abdominal pain, and the average delay in diagnosis from first symptoms was 33.5 ± 38 (1-156) months. Most of the patients had 1-3 cm long vaginal pouch. The operative procedure lasted 125 ± 32 (80-190) min. The average vaginal length at 1 month was 7.9 ± 1.3 (range 6-9) cm. All patients showed resumption of menstruation. The patients were followed for a mean of 27 ± 13 (12-56) months. During the follow-up, cervical stenosis did not occur in any of the cases. CONCLUSION Laparoscopic uterovaginal anastomosis with Luohu procedure provided a minimally invasive, safe, and effective surgical option for the patients with congenital cervicovaginal atresia. The technique is uncomplicated, easy to learn and perform, and provides a functional and anatomic satisfactory result. No special surgical instruments are required with this technique.
Collapse
Affiliation(s)
- Hong-Xin Pan
- Department of Gynecology, Southern University of Science and Technology Hospital, Shenzhen, Guangdong, 518000, PR China.
| | - Guang-Nan Luo
- Department of Obstetrics and Gynecology, The 3rd Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, 518000, PR China
| | - Cheng-Lu Qin
- Department of Obstetrics and Gynecology, The 3rd Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong, 518000, PR China
| |
Collapse
|
2
|
Gong Q, Peng YG, Niu MF, Qin CL. Research Note: The immune enhancement ability of inulin on ptfA gene DNA vaccine of avian Pasteurella multocida. Poult Sci 2020; 99:3015-3019. [PMID: 32475437 PMCID: PMC7597738 DOI: 10.1016/j.psj.2020.03.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Accepted: 02/27/2020] [Indexed: 11/24/2022] Open
Abstract
To evaluate the ability of inulin to enhance the immune response of a ptfA gene DNA vaccine for avian Pasteurella multocida, inulin was added as an adjuvant to the ptfA-DNA vaccine, obtaining an inulin-adjuvant DNA vaccine. The DNA vaccine was administered to chickens; a fimbria protein vaccine and an attenuated live vaccine were used as positive controls. The levels of the serum antibody and concentrations of interferon-γ (IFN-γ), interleukin-2 (IL-2), and interleukin-4 (IL-4) were determined, and a lymphocyte proliferation assay was performed. After being challenged with virulent P. multocida, the protective efficacy was evaluated. The results showed that the serum antibodies induced by the ptfA-DNA vaccine were not enhanced by inulin. The stimulation index values and the concentrations of IL-2 and IFN-γ in chickens vaccinated with inulin-adjuvant DNA vaccine were significantly higher than those in chickens vaccinated with the DNA vaccine, those with the fimbria protein vaccine, and the chickens gavaged with inulin. The concentrations of IL-4 in the inulin-adjuvant DNA vaccine group and the fimbria protein vaccine group were higher than those in the DNA vaccine group and the inulin-gavage group. The protective efficacy rates of the attenuated live vaccine group, the fimbria protein vaccine group, the DNA vaccine group, the inulin-adjuvant DNA vaccine group, and the inulin-gavage group were 90, 70, 55, 65, and 55%, respectively.
Collapse
Affiliation(s)
- Q Gong
- Henan University of Science and Technology, Luoyang 471023, P.R. China.
| | - Y G Peng
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research, Institute Chinese Academy of Agricultural Sciences, Harbin 150069, P.R. China
| | - M F Niu
- Henan University of Science and Technology, Luoyang 471023, P.R. China
| | - C L Qin
- Henan University of Science and Technology, Luoyang 471023, P.R. China
| |
Collapse
|
3
|
Gong Q, Kong LY, Niu MF, Qin CL, Yang Y, Li X, Ruan MD, Tian Y, Li ZL. Construction of a ptfA chitosan nanoparticle DNA vaccine against Pasteurella multocida and the immune response in chickens. Vet J 2017; 231:1-7. [PMID: 29429481 DOI: 10.1016/j.tvjl.2017.11.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 11/13/2017] [Accepted: 11/17/2017] [Indexed: 01/08/2023]
Abstract
The aim of this study was to evaluate the effect of chitosanon the immune response induced by a DNA vaccine based on the ptfA gene of avian Pasteurella multocida. Naked DNA vaccine was packed with chitosanmolecules, resulting in a chitosannanoparticle DNA vaccine. The encapsulation efficiency, shape, size and resistance to DNA degradation were determined. The vaccine was administered to chickens and serum antibody, interferon-γ (IFN-γ), interleukin-2 (IL-2) and interleukin-4 (IL-4) concentrations were determined and lymphocyte proliferation assays were performed. After challenge with virulent avian P. multocida, protective efficacy was evaluated. The encapsulation efficiency of the chitosan nanoparticle DNA vaccine was 95.3%. The particle size was approximately 200nm and close to spherical in shape and it could effectively resist degradation by DNases. Following vaccination, serum antibodies, stimulation index (SI) value and concentrations of IFN-γ and IL-2 in chickens vaccinated with the chitosan nanoparticle DNA vaccine were significantly higher than those that were vaccinated with the naked DNA vaccine (P-values are 0.026, 0.045, 0.039 and 0.024, respectively). However, the concentrations of IL-4 in the two DNA vaccines group were no significant difference (P=0.157). The protective efficacy rate provided by naked DNA vaccine, chitosan nanoparticle DNA vaccine and the attenuated live vaccine were 56%, 68% and 88%, respectively. The results indicated that chitosan was able to enhance the immune response to a naked DNA vaccine based on the ptfA gene of P. multocida.
Collapse
Affiliation(s)
- Q Gong
- Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, PR China.
| | - L Y Kong
- Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, PR China
| | - M F Niu
- Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, PR China
| | - C L Qin
- Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, PR China
| | - Y Yang
- Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, PR China
| | - X Li
- Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, PR China
| | - M D Ruan
- Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, PR China
| | - Y Tian
- Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, PR China
| | - Z L Li
- Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, PR China
| |
Collapse
|
4
|
Zhang JJ, Liao S, Du M, Qin CL, Li BY, Luo GN. [Laparoscopy-insisted vaginoplasty with peritoneum in patients with androgen insensitivity syndrome]. Zhonghua Zheng Xing Wai Ke Za Zhi 2011; 27:343-347. [PMID: 22259983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To investigate the technique and therapeutic effect of laparoscopy-insisted vaginoplasty with peritoneum in patients with androgen insensitivity syndrome. METHODS From May. in the Fifth People' s Hospital of Shenzhen. The therapeutic effect was retrospectively analyzed. RESULTS Laparoscopy-insisted vaginoplasty was successfully completely with peritoneum in patients with androgen in 4 cases. Ileumtivity segyndroment was used instead of peritoneum in one case. Open operation was not adopted in any cases. The ectopic testicles were removed during operation in 4 cases. The average operation time and bleeding volume was 60 min and 20 ml, respectively. Rectum, bladder and urethra were not injured in any case. The average vaginal length was 9 cm (range 8-10 cm) 21-28 days after operation. 6 months after operation, the surface of reconstructed vagina was smooth, ruddy and flexible, with satisfactory anatomical and functional results. Normal sexual activity was achieved in 2 cases. CONCLUSIONS Laparoscopy-insisted vaginoplasty with peritoneum could be used for female patients with androgen insensitivity syndrome. The ectopic testicles should be removed. Estrogen supplement and psychological guide after operation are also important.
Collapse
Affiliation(s)
- Juan-Juan Zhang
- Department of Gynecology, the Fifth People's Hospital of Shenzhen, Shenzhen 518001, China
| | | | | | | | | | | |
Collapse
|
5
|
Caron A, Qin CL, Gu L, González S, Shluger A, Fecht HJ, Louzguine-Luzgin DV, Inoue A. Structure and nano-mechanical characteristics of surface oxide layers on a metallic glass. Nanotechnology 2011; 22:095704. [PMID: 21270487 DOI: 10.1088/0957-4484/22/9/095704] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Owing to their low elastic moduli, high specific strength and excellent processing characteristics in the undercooled liquid state, metallic glasses are promising materials for applications in micromechanical systems. With miniaturization of metallic mechanical components down to the micrometer scale, the importance of a native oxide layer on a glass surface is increasing. In this work we use TEM and XPS to characterize the structure and properties of the native oxide layer grown on Ni(62)Nb(38) metallic glass and their evolution after annealing in air. The thickness of the oxide layer almost doubled after annealing. In both cases the oxide layer is amorphous and consists predominantly of Nb oxide. We investigate the friction behavior at low loads and in ambient conditions (i.e. at T = 295 K and 60% air humidity) of both as-cast and annealed samples by friction force microscopy. After annealing the friction coefficient is found to have significantly increased. We attribute this effect to the increase of the mechanical stability of the oxide layer upon annealing.
Collapse
Affiliation(s)
- A Caron
- WPI-Advanced Institute of Materials Research, Tohoku University, Sendai, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
6
|
Nagai N, Qin CL, Nagatsuka H, Inoue M, Ishiwari Y. Age effects on ectopic bone formation induced by purified bone morphogenetic protein. Int J Oral Maxillofac Surg 1999; 28:143-50. [PMID: 10102399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
A mixture of heparin-Sepharose-purified bovine bone morphogenetic protein and type I atellocollagen was implanted in the subcutaneous tissues of 4-week, 10-month and 18-month-old rats. The implants were removed at 7, 14 and 21 days after implantation. The effects of rat age on ectopic bone formation were evaluated on the explants using haematoxylin-eosin staining, morphometric analysis, alkaline phosphatase activity and calcium content determination, as well as immunohistochemical staining of type IV collagen present in the basement membrane of blood vessels. On day 14 and 21, bone was observed in 4-week and 10-month-old rats, but the amount of bone formed in the latter was less than in the 4-week-old rats. In 18-month-old rats, bone was first found focally in very limited regions of the explants on day 21 and the amount of bone was much less than in 4-week-old rats. At all periods, alkaline phosphatase activity was higher in younger rats. On day 7, there were more blood vessels in the explants of 4-week-old rats than in those of 10-month or 18-month-old rats. On day 14 and 21, more blood vessels were found in the central regions of the explants in 4-week-old rats than in the same regions in 10-month or 18-month-old rats. The findings in the present study indicate that the rate and quantity of ectopic bone formation are reduced in aged rats, and suggest that the difference in blood vessel distribution is related to this reduction in ectopic bone formation.
Collapse
Affiliation(s)
- N Nagai
- Department of Oral Pathology, Okayama University Dental School, Japan.
| | | | | | | | | |
Collapse
|
7
|
Abstract
As an initial effort to dissect the signaling pathways responsible for pathogenesis of Toxoplasma gondii infection, we report the cloning and in vitro functional studies of TPK3 (Toxoplasma protein kinase-3), a homologue of shaggy/glycogen synthase kinase-3 (GSK-3) kinases. The shaggy/GSK-3 family of kinases are highly conserved protein kinases that play important roles in cell fate determination, nuclear signaling and hormonal regulation. The TPK3 gene was isolated by RT-PCR with degenerate primers corresponding to highly conserved regions of serine/threonine protein kinases. The complete sequences of genomic and cDNA clones indicated the open reading frame, 1185 bp in size, is interrupted by five introns. The predicted protein sequence of TPK3 shows 54% identity to shaggy/GSK-3 over the catalytic domains. Southern analysis revealed TPK3 is a single copy locus in the Toxoplasma genome. Antisera to other GSK-3 proteins from other species recognized GST-TPK3 and a protein of the predicted size in parasites lysates. In vitro kinase assays with GST-TPK3 indicated that TPK3 autophosphorylates and phosphorylates protein phosphatase inhibitor-2 (I-2), a specific substrate of GSK-3 kinase.
Collapse
Affiliation(s)
- C L Qin
- Department of Medicine (Division of Infectious Diseases), Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | | | | |
Collapse
|
8
|
Tang W, Qin CL, Yang XC. Cloning, localization, and functional expression of a human brain inward rectifier potassium channel (hIRK1). Recept Channels 1995; 3:175-183. [PMID: 8821791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We have cloned a novel human brain inward rectifier K+ channel (hIRK1), which shares approximately 60% amino acid identity with another human inward rectifier (hIRK2) but 98% identity with the mouse IRK1. The hIRK1 mRNA is expressed in several human tissues: skeletal muscle > placenta > heart > brain > lung > kidney. In human brain, the hIRK1 mRNA is uniformly distributed (except for a higher level in the corpus callosum, which contains white matter and glial cells), whereas the hIRK2 mRNA is expressed in major regions of the basal ganglia and limbic system. Xenopus oocytes injected with hIRK1 cRNA expressed an inwardly rectifying K+ current that was blocked by extracellular Ba2+. The hIRK1 channel carried a significant outward current when membrane potential was more positive than the K+ equilibrium potential (EK) and therefore had an "N-shape" current-voltage relation, resembling that of the native cardiac IRK channel. The resting membrane potential was near EK in oocytes expressing hIRK1, but was approximately -40 mV in H2O-injected or non-injected oocytes. The ability of hIRK1 to set the resting membrane potential depended on the outward current. Single-channel conductance of hIRK1 was 32 pS measured with 150 mM KCl in the patch pipette, significantly higher than 23 pS measured for mouse IRK1 and approximately 10 pS for hIRK2.
Collapse
Affiliation(s)
- W Tang
- Department of CNS Research, Lederle Laboratories, American Cyanamid Co., NY 10965, USA
| | | | | |
Collapse
|
9
|
Qin CL, Liu JY, Cheng ZM. [Pharmacological studies on the effects of huanglian decoction on experimental gastric lesions in rats and antiemetic in pigeons]. Zhongguo Zhong Yao Za Zhi 1994; 19:427-30, 448. [PMID: 7802953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The results showed that Huanglion decoction has protective effect on ethanol-,HCl- and aspirin-induced gastric hemorrhagic lesions in rats and antemetic effect on CuSO4-induced vomiting in pigeons. A dose of 27g/(kg.d) po applied in mice showed no toxic action. This dose is 400 times that of clinical application.
Collapse
Affiliation(s)
- C L Qin
- Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing
| | | | | |
Collapse
|
10
|
Qin CL, Liu JY, Cheng ZM, Jiao Y. [Experimental studies on Uncaria sinensis (Oliv.) Havil and Achyranthes bidentata Blume and their compacibility]. Zhongguo Zhong Yao Za Zhi 1994; 19:371-3, 384. [PMID: 7945888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Pharmacological studies were conducted on Uncaria sinensis and Achyranthes bidentata both separately and combined. Comparison was made on the hypotensive effect on normal and renal-type hypertensive rats as well anti-spasmodic and sedative effects in mice. The results showed that Uncaria sinensis and Achyranthes bidentata have obvious synergic action in compatibility.
Collapse
Affiliation(s)
- C L Qin
- Institute of Chinese Materia Medica, China Academy of Traditional Chinese Medicine, Beijing
| | | | | | | |
Collapse
|
11
|
Shrestha P, Yang LT, Liu BL, Namba M, Qin CL, Isono K, Tsukitani K, Mori M. Clear cell carcinoma of salivary glands: immunohistochemical evaluation of clear tumor cells. Anticancer Res 1994; 14:825-36. [PMID: 7521153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A total of 14 cases of clear cell carcinoma of salivary glands were evaluated by immunohistochemical methods using monoclonal antibodies to cytokeratin (K1.1 and K8.12), vimentin, S-100 alpha and beta subunits, neuron-specific enolase (NSE), glial fibrillary acidic protein (GFAP), MAM-3 and MAM-6 antigens and proliferating cell nuclear antigen (PCNA), as well as polyclonal antibodies to lysozyme (Ly), lactoferrin (la) and Alpha-1-antichymotrypsin (alpha 1-Ach). Histopathologically, the carcinoma was characterized by round or polygonal tumor cells with cytoplasm that does not stain with hematoxylin and eosin, nuclei with little pleomorphism and few or no mitotic figures, and growing in solid sheets, small nests or cords with collagenous stroma. Cytokeratin KL1 and K8.12 was present in few tumor cells with almost negligible to strong reaction in all cases, vimentin in 6, GFAP in 5 cases with multiple-expression of cytokeratin K8.12, vimentin and GFAP in 5 cases. S-100 protein immunoreactivity was the most prominent feature with more intense reaction of S-100 beta than S-100 alpha subunit. NSE reactivity was seen in 6 cases. Ly, La, a1-ch, MAM-3 and MAM-6 antigens were localized in clear cells with various reaction intensities. The authors conclude that the clear tumor cells in clear cell carcinoma of salivary glands are not myoepithelial in origin but epithelial or neuroectodermal/neural crest in origin, showing ductal differentiation at the immunohistochemical level.
Collapse
Affiliation(s)
- P Shrestha
- Department of Oral and Maxillofacial Surgery, Asahi University School of Dentistry, Gifu, Japan
| | | | | | | | | | | | | | | |
Collapse
|
12
|
Qin CL, Jiao Y. [Effects of aqueous extracts of rhizoma seu radix Notopterygii (Notopterygium incisum Ting ex H. T. Chang) on experimental arrhythmias]. Zhong Yao Tong Bao 1987; 12:45-7, 60. [PMID: 3446396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
13
|
Qin CL. [Pharmacological study of the Chinese drug Qiang-Huo (Notopterygium incisium Ting) (author's transl)]. Zhong Yao Tong Bao 1982; 7:31-2. [PMID: 6212149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|