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Objective:To explore the clinical features of critical cases of corona virus disease 2019 (COVID-19).Methods:The clinical data of nine patients who were diagnosed with critical COVID-19 in Hainan General Hospital from January 21 to February 6, 2020 were retrospectively analyzed. There were eight males and one female enrolled. The patients aged 28 to 77 years old, with an age of (52.9±18.0) years. Reverse transcription-polymerase chain reaction testing for 2019 novel coronavirus (2019-nCoV) was performed with multi-sites synchronize specimens including pharyngeal swab, blood, excrement and urine. The deadline of follow-up was March 4, 2020. The serum levels of leukocyte, C reactive protein, procalcitonin and lactic acid between the improved group (five cases) and the deteriorated group (four cases) were compared. The t test was used for comparison of normally distributed continuous data between groups. Results:Among nine patients, five cases were cured and discharged, three cases died and one case remained in critical condition. All multi-sites specimens of patients in improved group turned negative in 2 to 4 weeks of illness onset, while those of cases in deteriorated group showed sustained viral nucleic acid positive (up to 48th day of illness onset). The white blood cell counts ((13.52±8.24)×10 9/L vs (10.49±4.46)×10 9/L), C reactive protein ((139.71±87.46) mg/L vs (78.60±55.40) mg/L) and procalcitonin ((4.03±2.32) μg/L vs (0.58±0.28) μg/L), lactic acid ((4.14±3.70) mmol/L vs (2.33±0.53) mmol/L) in deteriorated group were all significantly higher than those in improved group ( t=2.908, 5.009, 4.391 and 2.942, respectively, all P<0.01). A rapid rise of serum interleukin-6 level up to 8 500 ng/L was observed in one patient three days prior to death. Conclusion:Among the patients with critical COVID-19, serum levels of inflammatory cytokines of the death cases are higher than those of improved and discharged cases.
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Objective To explore the clinical features of critical cases of coronavirus disease 2019 (COVID-19). Methods The clinical data of nine patients who were diagnosed with critical COVID-19 in Hainan General Hospital from January 21, 2020 to February 6, 2020 were retrospectively analyzed. RT-PCR testing for 2019 novel coronavirus (2019-nCoV) was performed with multi-sites synchronize specimens including pharyngeal swab, blood, excrement, and urine. The serum levels of leucocyte, C-reactive protein, procalcitonin and lactic acid between the improved group (five cases) and the deteriorated group (four cases) were compared. The t test was used for comparison of normally distributed continuous data between groups. Results There were eight males (88.9%) and 1 female enrolled. The patients aged 28-77 years old, with an age of (52.9±18.0) years. By March 4, 2020, all five cases in improved group were cured and discharged, three cases in deteriorated group died and 1case remained in critical condition. All multi-sites specimens of patients in improved group turned negative in 2-4 weeks of illness onset, while those of cases in deteriorated group showed sustained viral nucleic acid positive (up to 48th day of illness onset). The white blood cell counts ((13.52±8.24)×10 9 /L vs (10.49±4.46) ×10 9 /L), C-reactive protein ((139.71±87.46) mg/L vs (78.60±55.40) mg/L) and procalcitonin ((2.32±4.03) ng/mL vs (0.28±0.58) ng/mL) , lactic acid ((3.70±4.14) mmol/L vs (2.33±0.53) mmol/L) in deteriorated group were all significantly higher than those in improved group ( t =2.908, 5.009, 4.391 and 2.942, respectively, all P <0.01). A rapid rise of serum IL-6 level up to 8 500 pg/mL was observed in one patient three days prior to death. Conclusion Among the patients with critical COVID-19, serum levels of inflammatory cytokines of the death cases are higher than those of improved and discharged cases.
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Non-invasive prenatal testing is a novel detection method which uses sequencing of maternal plasma cell-free DNA in order to screen genetic disease for pregnant women. Compared to traditional prenatal pregnancy tests and disease diagnosis techniques, this technology is non-invasive, convenient, accurate and so on. Since the discovery of cell-free DNA in the peripheral maternal plasma in 1997, non-invasive prenatal genetic testing has been widely used in clinical pregnancy tests and related medical research with the development of high-throughput gene sequencing,it has meaningful achievements in the detection of fetal aneuploidy and enormous challenges in the detection of complex genetic diseases . This article reviews the development of non-invasive prenatal genetic testing technology.
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Objective To investigate the mutation screening of the GJB3,GJB2,mtDNA 1555 A>G and SLC26A4 gene in Hainan Pronive population with non-syndromic hearing impairment.Methods PCR were performed with one pair of primer in the coding sequence of GJB3,GJB2,mtDNA 1555 A>G and SLC26A4 gene.Bidirectional sequencing of PCR products was subsequently applied in 429 patients with hearing loss.Results 55 patients gene mutation of 429 patients were found. The point mutation in mtDNA was found in 5 patients (1.1 7%).1 5 5 5 A>G mutation of mtDNA was found in 4 patients. 1494 C>T mutation of mtDNA was found in one patients.GJB2 gene mutation was found in 25 patients (5.83%).235 del C mutation of GJB2 gene was found in 9 patients.235 del C/GJB2 299 del AT mutation was found in two patients.235 del C mutation was found in 10 patients.176 del 16 mutation was found in 4 patients.SLC26A4 mutation was found in 22 patients (5.13%).IVS7-2 A>G mutation of SLC26A4 was found in 4 patients.2168 A>G mutation of SLC26A4 was found in one patient.IVS7-2 A>G mutation was found in 12 patients.2168 A>G mutation was found in 5 patients.538 C>T mutation of GJB3 gene was found in 3 patient.IVS7-2A>G mutation and 2168 A>G muation of SLC26A4 gene was found in 4 of 22 EVA patients.Conclusion GJB2 gene and SLC26A4 gene have revealed responsible genes for Hainan deafness patients.
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OBJECTIVE@#To investigate the geographic distribution of air-borne allergens which caused allergic rhinitis in Urumqi, and offer guide for prevention and treatment of the patients with allergic rhinitis.@*METHOD@#Skin prick tests were performed on 350 patients with allergic rhinitis by assay of Novo-helisen depot (NHD) fluid.@*RESULT@#The total positive rate of inhaled allergens among 350 patients was 78.86%. The most frequent of allergen was chenopodium 78.86% (255 cases). The other frequent allergens were ragweed 36.86% (128 cases), artemisir 28% (98 cases), timothy 27.14% (95 cases), elm 5.71% (90 cases), willow 25.14% (88 cases), poplar 18.86% (66 cases), cockroach 18.86% (66 cases), dust-mite 14.86% (62 cases), flour mite 14.86% (52 cases), alternaria spp 2.86% (10 cases). Allergen were multiple in most AR patients. There was not statistically significant difference between the sexes. There was statistically significant difference between the tribes.@*CONCLUSION@#Chenopodium, ragweed and artemisir were the main allergens in patients with allergic rhinitis in Urumqi.
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Adolescent , Adult , Aged , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Young Adult , Allergens , Rhinitis, Allergic , Allergy and Immunology , Skin TestsABSTRACT
Objective To investigate the effects of lanthanum chloride on proliferation and migration activity of human cervical cancer cells in vitro which may be a new anti-cervical cancer drug and provide experimental data for cervical cancer treatment. Methods HeLa cells cultured in vitro were divided into two groups: experimental group and control group. In experimental group, the cells were respectively treated with lanthanum chloride at different concentrations, 5, 50 and 100 μmol/L, while the cells in the control group were not treated with lanthanum chloride. The cell growth was observed by inverted microscope and the morphology changes of the cells were observed by the laser scanning confocal microscope (LSCM).Proliferation of HeLa cells in the two groups was detected by methyl thiazolyl tetrazolium (MTT) test;apoptosis rate was analyzed by flow cytometry (FCM). Cell migration test was applied to observe the effect of lanthanum chloride on migration. Reverse transcription (RT)-PCR was employed to evaluate the effects of lanthanum chloride on proliferation gene (cyclinD1), anti-apoptosis gene (zinc finger protein A20) and migration-related gene (matrix metalloproteinase 9, MMP-9). Results The status of cell growth was observed under the inverted microscope: with the increased of the lanthanum chloride concentrations, the cell density of reduced, the granule in cytoplasm increased, color intensifying and intercellular space enlarged; some cells became rounding and dead, floating in the culture media; the exfoliated cells increased gradually in the experimental groups. While In the control group, the cells grew adherently, with clear morphology and plump cytoplasm, and adjacent cell grew in lamellar. Observed with LSCM: the nuclear chromatin condensated and marginated with the volume of nuclear decreased in experimental groups. With the increase of the lanthanum chloride concentrations, nuclei in the experimental groups became pyknotic and then underwent karyorrhexis. However, the nuclear of the cells in control group were inact. The growth inhibition rates of lanthanum chloride groups (5, 50, 100 μmol/L) were 24%, 51% and 78%,respectively, in which each was significantly higher than that of the control group (P < 0. 05); the apoptosis rates of lanthanum chloride group were (4. 91 + 0. 39) %, (7. 30 + 0. 71) % and (13.48 + 0. 92) %,respectively, which were all significantly higher than that of the control group [(0. 89 + 0. 11) %, P <0.01]. The migration ability of the cells was also decreased by the treatment of lanthanum chloride, the number of migrated cells in lanthanum chloride groups were 22.2±4. 3, 12. 0±3.2 and 7. 8±2. 6 respectively, which were all significantly lower than that of the control group (41.2±5.4, P < 0. 01). The expression of genes of cyclinD1, A20 and MMP-9, were all decreased by the treatment of lanthanum chloride in a dose-dependent manner. Conclusion Lanthanum chloride can inhibit the proliferation and migration of cervical cancer cells, and induce apoptosis by down-regulating cyclinD1, A20, and MMP-9 expressions in vitro.
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Objective To investigate the allele polymorphism and characteristic of HPA-1-17 genotyping of Li ethnic on Hainan island,and to evaluate the HPA mismatched ratio between donor and recipient in randomly chosen cases of blood transfusion,in order to investigate the platelet transfusion refractoriness in Li population.Methods Genotyping tests of A-1—17 allele of the blood sample from 180 Lis were conducted with PCR-SSP.Results A total of 180 blood samples were genotyped successfully in HPA genetic system,among which 0.9972 were HPA-2a,0.0028 were HPA-2b,0.4889 were HPA-3a,0.5111 were HPA-3b,0.9667 were HPA-5a,0.0333were HPA-5b,0.9972 were HPA-6a,00028 were HPA-6b,0.4250 were HPA-15a,0.05750 were HPA-15b,and they all showed polymorphism. But polymorphism was not detected out in other allelic genes,such as HPA-1,-4,-7—14,-16,and -17. The bb homozygous were detected in two alleles,among which 0.2834 was HPA-3 and 0.3667 was HPA-15,but it wasn't detected in the others systems. In the randomly chosen cases of blood transfusion,the mismatch rate of HPA-3 ,HPA-15 and HPA-5 was 37.49%,36.93% and 6.23%,respectively.Conclusion This research revealed the distribution of HPA gene in Li population on Hainan island,and found the allelic frequency and thier characteristics. According to our findings,HPA-2,HPA-3,HPA-5 and HPA-15 genes between donor and recipient should be matched in order to avoid platelet transfusion refractoriness.
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Background and purpose:Radical surgery remains the main treatment for the patients with pancreatic and duodenal cancer,but resectability rate is low when clinically diagnosed,portal vein/superior mesenteric vein or inferior caval vein invaded by tumors are a few of the main reasons.How to increase resectability of pancreatic cancer and duodenal cancer still is very challenging to the clinician.This study was done to explore the feasibility of the new surgical approach for the treatment of pancreatic and duodenal cancer with portal vein/superior mesenteric vein or inferior caval vein invasion.Methods:5 patients received pancreatoduodenectomy with vascular reconstruction between February 2002 and June 2005.Three patients with pancreatic head cancer underwent pancreatoduodenectomy combined with portal vein/SMV resection and vascular reconstruction and two patients with duodenal cancer underwent pancreatoduodenectomy combined with inferior caval vein resection and vascular reconstruction.Results:There was no surgery related death.The serious complications such as artificial blood vessel infections or obstructions were not experienced.After surgery,one patient died 10 months later,one patient died 24 months later,two patients survived for over 3 years and one patient over 4 years.Conclusions:Pancreatoduodenectomy with vascular reconstruction for patients with carcinoma of the pancreatic head or duodenum invading portal vein/superior mesenteric vein or inferior caval vein has been proved to be a safe treatment,it could improve the resectability of the tumor and prolong survival.