1.The effect of GRP78 on cancer
Zhi XU ; Kai WANG ; Mingwen HUANG
International Journal of Surgery 2010;37(2):127-130
The glucose-regulated protein78 (GRP78) is a member of the heat-shock protein 70 (HSP70) family and responsible for cellular homeostasis. GRP78 is highly expressed in various tumors. It plays an im-portant role in tumor proliferation, survival, metastasis, and drug resistance. Suppression of GRP78 in tumors could enhance cancer treatment. Inhibition of GRP78 in tumors may provide a noval approach toward cancer therapy.
3.Clinicopathologic and immunohistochemical study of primary non-Hodgkin lymphoma of the female genital system
Xue-Feng JIANG ; Kai-Xuan YANG ; Zhi-Lan PENG ; Lian XU ; Qin HUANG ; Qian LI ;
Chinese Journal of Obstetrics and Gynecology 2001;0(04):-
Objective To investigate the clinicopathology and immunophenotype of primary non- Hodgkin lymphoma(NHL)of the female genital system,and to analyze the prognosis of such tumors. Methods Clinicopathologic features of 43 cases of primary NHL of the female genital system were studied retrospectively,with the histological classification based on the Classification of Haematopoietic and Lymphoid Tumors(WHO,2001).Immunochemistry technique,in-situ-hybridization and polymerase chain reaction methods were used to detect the immunophenotype,epstein barrvirus(EB)virus infection status and immunoglobulin heavy chain gene rearrangement,respectively.Results(1)Primary lesions:there were 24 cases of lymphoma originating in the ovary,3 cases in the endometrium,10 cases in the cervix,2 cases in the vagina and 4 cases in the vulva.(2)Staging:12 cases(28%)were in stage Ⅰ,9 cases (21%)in stage Ⅱ,and 22 cases(51%)in stage Ⅲ.(3)Histological classification:37 cases(86%)were diffuse large B cell lymphoma(DLBCL),3 cases were Burkitt lymphoma and the remaining 3 cases were unspecified peripheral T-cell lymphoma according to biopsy,immunophenotype analysis,in-situ- hybridization technique and IgH gene rearrangement detection.(4)Prognosis analysis:increase in the level of lactic acid dehydrogenase,stage Ⅲ,DLBCL and single operation suggest poor prognosis.Conclusions Establishment of the diagnosis of primary NHL of the female genital system is based on biopsy, immunophenotype analysis,in-situ-hybridization technique and IgH gene rearrangement detection,which play important roles in diagnosis and differential diagnosis of the tumor.Combined therapy is the first choice of therapeutic regimens.
4.Neuroprotection of adenoassociated vira-mediated brain-derived neurotrophic factor on retinal ganglion cells in DBA/2J mice with glaucoma
Chu-kai, HUANG ; Ming-zhi, ZHANG ; Li-fang, LIU ; Ling-ping, CEN ; Miao-miao, HAN
Chinese Journal of Experimental Ophthalmology 2011;29(4):314-318
Background Deficiency of neurotrophic factor is associated with the damage of optic nerve in glaucoma.Reaserches showed that ectopically applied neurotrophic factor has a transient neuroprotective effect in glaucoma model,and the viral expression of adeno-associated neurotrophie factor may provide long-term supplementation of neurotrophic factor and neuroprotection in tissues.Objective The present study Was to investigate the neuroproteetive effect of adeno-associated viral(AAV)-mediated brain-derived neurotrophic factor (BDNF)on retinal ganglion cells(RGCs)in DBA/2J mice with experimental glaucoma. Methods 10 clean DBA/2J mice were administered intravitreal injection with 1 microliter of AAV-BDNF-GFP in the left eyes at the age of 6 months,and the right eyes were injected with the same volume of saline solution as control.Intraocular pressure (IOP)was measured with Tonolab in the mice every month.Retinas were obtained after 3 months for the investigation of GFP expression in RGCs using fluorescence microscopy.Immunohistochemistry Was performed by applying TUJ1 and Cy3 antibodies to identify surviving RGCs. Results The IOP of DBA/2J mice were 11.90 mmHg and 11.40 mmHg in the right eyes and left eyes,respectively,at 4 months.The IOP of DBA/2J mice began to rise at 5 months and reached its peak in 8 month-old mice.There was no statistically significant difference in IOPs between the right eyes and the left eyes from 4 month-through 9 month-old mice(t=-1.78-0.61,P=0.11-0.90).Three months after intrlavitreal injection of AAV-BDNF-GFP,GFP was positively expressed in RGCs of retinas with the expression rate of 46.33%±8.08%.The over-expression of BDNF led to more RGCs survival than the control eyes (3168.13±1319.33/mm2 vs 2024.81±796.38/mm2,t=2.75,P=0.02). Conclusion These data suggest that BDNF can exert a protective effect in DBA/2J glaucoma mice.
5.Thermal effect of holmium laser lithotripsy under ureteroscopy
Wang XIN-KUN ; Jiang ZHI-QIANG ; Tan JING ; Yin GUANG-MING ; Huang KAI
Chinese Medical Journal 2019;132(16):2004-2007
6.Chemical constituents from Ganoderma philippii.
Shuang YANG ; Qing-Yun MA ; Sheng-Zhuo HUANG ; Hao-Fu DAI ; Zhi-Kai GUO ; Zhi-Fang YU ; You-Xing ZHAO
China Journal of Chinese Materia Medica 2014;39(6):1034-1039
The chemical investigation on Ganoderma philippii led to the isolation of sixteen compounds by silica gel and Sephadex LH-20 column chromatography. On the basis of spectroscopic data analyses, their structures were elucidated as 2, 5-dihydroxyacetophenone (1), methyl gentisate (2), (S) -dimethyl malate (3), muurola-4, 10 (14) -dien-11beta-ol (4), dihydroepicubenol (5), 5-hydroxymethylfuran carboxaldehyde (6), ergosta-7, 22E-dien-3beta-ol (7), ergosta-7, 22E-dien-3-one (8), ergosta-7, 22E-diene-2beta, 3alpha, 9alpha-triol (9), 6/beta-methoxyergo-sta-7, 22E-dien-3beta, 5alpha-diol (10), ergosta-4, 6, 8(14), 22E-tetraen-3-one (11), ergosta4, 6, 8-(14), 22E-etetraen-3beta-ol (12), 5alpha, 8alpha-epidioxy-ergosta-6, 22E-dien-3beta-ol (13), 7alpha-methoxy-5alpha, 6alpha-epoxyergosta-8-(14), 22E-dien-3beta-ol (14), ergosta-8, 22E-diene-3beta, 5alpha, 6beta, 7alpha-tetraol (15), and ergosta-5, 23-dien-3beta-ol, acetate (16). All the compounds were obtained from this fungus for the first time, and compounds 4 and 5 were isolated from the Ganoderma genus for the first time.
Ganoderma
;
chemistry
;
Medicine, Chinese Traditional
;
Organic Chemicals
;
analysis
;
isolation & purification
7.Fourier Transform Infrared Microspectroscopy of Rat Kidney with Regard to Fa- tal Hyperthermia.
Zhi-jun WANG ; Shan-shan SHEN ; Kai-fei DENG ; Zhi-qiang QIN ; Ping HUANG ; Zhen-yuan WANG
Journal of Forensic Medicine 2015;31(4):257-261
OBJECTIVE:
To observe the chemical groups changing in rat kidney with regard to fatal hyperthermia by Fourier transform infrared microspectroscopy (FTIR-MSP) and to provide a new method to diagnose fatal hyperthermia.
METHODS:
Rats were sacrificed by hyperthermia, brainstem injury, massive hemorrhage and asphyxiation and divided into groups. The renal samples were dissected immediately after death. The data of infrared spectroscopy in glomerulus were measured by FTIR-MSP.
RESULTS:
The absorbances of 3290, 3070, 2850, 1540 and 1396 cm(-1) significantly increased (P < 0.05), and the ratios of Al650/A3290 and A1650/A1540 significantly decreased (P < 0.05) in group of hyperthermia.
CONCLUSION
FTIR-MSP can analyze the changes of chemical groups of kidney as an auxiliary diagnosis for discriminating hyperthermia with other causes of death.
Animals
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Fever/mortality*
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Fourier Analysis
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Kidney/metabolism*
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Microspectrophotometry
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Rats
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Spectroscopy, Fourier Transform Infrared/methods*
8.Analysis of influencing factors of multi-site work-related musculoskeletal disorders in surgeons
HUANG Kai sheng HUANG Dang sheng WU Yun PENG Zhi heng SHI Yi ming WANG Zhong xu YANG Min
China Occupational Medicine 2022;49(05):493-
Objective - -
To analyze the prevalence and influencing factors of multi site work related musculoskeletal disorders
( ) Methods
WMSDs in surgeons. A total of 102 surgeons from four hospitals were selected as study subjects by convenient
sampling method. The Chinese version of Musculoskeletal Disorders Questionnaire was used to investigate the prevalence of
, Results
WMSDs in the past one year the related individuals and occupational factors. The total prevalence of WMSDs among
( ), ( ) ( )
surgeons was 54.9%. The top three sites were neck 48.0% lower back 35.3% and shoulder 32.4% . The prevalence of
( vs ,P )
WMSDs in multiple sites was higher than that in a single site 43.1% 11.8% <0.01 . Multivariate logistic regression
, ,
analysis showed that surgeons who smoked were tired at work and had a bent back had a higher risk of developing WMSDs
[ ( - ), ( - ), ( - ), P ]
odds ratios and 95% confidence intervals were 3.66 1.41 9.46 8.33 2.15 32.20 and 18.74 2.14 166.77 all <0.01
Conclusion -
after excluding the influence of confounding factors. The prevalence rate of multi site WMSDs among surgeons is
,
high and the influencing factors include bad living habits and occupational factors such as working load and working posture.
10.Effect of Neoadjuvant Chemotherapy Treatment on Prognosis of Patients with Advanced Gastric Cancer: a Retrospective Study.
Shu-bo TIAN ; Jian-chun YU ; Wei-ming KANG ; Zhi-qiang MA ; Xin YE ; Chao YAN ; Ya-kai HUANG
Chinese Medical Sciences Journal 2015;30(2):84-89
OBJECTIVETo evaluate the prognostic effects of neoadjuvant chemotherapy (NAC) in patients with local advanced gastric cancer.
METHODSWe retrospectively analyzed prognosis in 191 patients with advanced gastric cancer, of whom 71 were treated with NAC and 120 received surgery only between February 2007 and July 2013. Postoperative complication rate was recorded. Survival by clinicopathological features, pathological T and N stages, and histopathological tumor regression was retrospectively compared between the two groups.
RESULTSAccording to Response Evaluation Criteria in Solid Tumors, none of the 71 patients in the NAC followed by surgery group showed complete response, 36 showed partial response, 25 had stable disease, and 10 had progressive disease. The chemotherapy response rate was 50.7%; the disease control rate was 85.9%. Grade 3/4 adverse events were seen in less than 20% patients, with acceptable toxicities. No difference was found in the overall postoperative complication rates between the two groups (7 versus 22 cases, P=0.18). Median survival time was significantly different, at 54 months in the NAC combined with surgery group and 25 months in the surgery-only group (P=0.025).
CONCLUSIONIn patients with operable gastric adenocarcinomas, NAC can significantly improve overall survival without increasing surgical complications.
Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Neoadjuvant Therapy ; Prognosis ; Retrospective Studies ; Stomach Neoplasms ; drug therapy ; mortality ; pathology